本文選題：在線狀態(tài)監(jiān)測 + 低功耗��； 參考：《中北大學》2017年碩士論文

【摘要】：煤炭對于當今中國社會來說是重要的生產(chǎn)要素之一,煤機的自動化水平直接關(guān)系著煤礦的生產(chǎn)效率和生產(chǎn)安全。礦用機械中的掘進機之類的旋轉(zhuǎn)型機械,在工作過程中很容易受到煤層的各種撞擊,進而會導(dǎo)致礦用煤機出現(xiàn)機械系統(tǒng)的故障,其故障往往表現(xiàn)為異常的振動和溫度變化,因此對于煤機在工作過程中的振動和溫度狀態(tài)進行監(jiān)測就非常重要了。而傳統(tǒng)的煤機監(jiān)測方式一般為有線測量,但是有線的測量方式由于跟旋所導(dǎo)致線路纏繞等問題不能廣泛實施,無線傳感(WSN)技術(shù)能夠有效地解決監(jiān)測設(shè)備跟旋難題。但是在無線傳感設(shè)備中基本都是由電池來負責提供能量,電池的電量又給無線設(shè)備的持續(xù)工作能力帶來了限制,對于已經(jīng)安裝到煤機中的無線傳感設(shè)備的電池進行更換和充電更是成本巨大。因此對于具有自供電功能的無線傳感器終端設(shè)備的關(guān)鍵技術(shù)進行研究具有很大的現(xiàn)實意義。本文以研究在線監(jiān)測采煤機械工作狀態(tài)的設(shè)備所需關(guān)鍵技術(shù)為目的,在調(diào)研了所需自供電及無線傳感技術(shù)要求的基礎(chǔ)上,完成了系統(tǒng)樣機的設(shè)計。首先,我們針對發(fā)電器件設(shè)計了專用的能源管理電路;而后,我們采用Spartan 6 FPGA芯片作為核心控制模塊;采用了數(shù)字式溫度傳感器DS18B20設(shè)計溫度傳感模塊,在-20℃~80℃范圍內(nèi)的測量精度可以達到±0.5℃;基于數(shù)字式加速度傳感器ADXL345設(shè)計振動傳感模塊,其最高采樣率能夠達到3.2KHz;無線通信模塊采用藍牙芯片CC2540完成低功耗、小范圍的傳感數(shù)據(jù)傳輸。通過動態(tài)功耗管理技術(shù)完成系統(tǒng)運行邏輯的設(shè)計,基于ISE平臺完成程序編寫和調(diào)試。最后通過一系列的實驗驗證了系統(tǒng)方案中所設(shè)計的功能,整體功耗不足一百毫瓦,能夠保障20米范圍的有效數(shù)據(jù)傳輸距離,基本實現(xiàn)了預(yù)期的設(shè)計目標。
[Abstract]:Coal is one of the important factors of production in today's Chinese society. The automation level of coal machine is directly related to the production efficiency and production safety of the coal mine. The rotary machine such as the driving machine in the mining machinery is easily impacted by various kinds of coal seam impact in the working process, which will lead to the mechanical system of coal mining machine. Fault, the fault often shows abnormal vibration and temperature change, so it is very important to monitor the vibration and temperature state of the coal machine during the working process. And the traditional coal machine monitoring mode is usually wired, but the cable measurement method can not be widely carried out because of the winding caused by the winding. Sensing (WSN) technology can effectively solve the problem of monitoring equipment heel. But in the wireless sensor equipment, the battery is basically responsible for providing energy. The battery's power is also limited to the continuous working capacity of the wireless device. It is more cost to replace and charge the battery for the wireless sensor equipment installed in the coal machine. Therefore, it is of great practical significance to study the key technology of the wireless sensor terminal equipment with self power supply function. This paper aims at the key technology needed to study the equipment for on-line monitoring of the working state of the mining machinery. On the basis of investigating the requirements of the required self power supply and wireless transmission technology, the system sample has been completed. First, we design a special energy management circuit for the power generation device; then we use Spartan 6 FPGA chip as the core control module; the digital temperature sensor DS18B20 is used to design the temperature sensing module, and the measurement precision can reach to 0.5 degrees C in the range of ~80 centigrade at -20 C; based on the digital acceleration transmission. Sensor ADXL345 design vibration sensing module, its maximum sampling rate can reach 3.2KHz; wireless communication module uses Bluetooth chip CC2540 to complete low power, small range sensing data transmission. Through dynamic power management technology to complete system operation logic design, based on the ISE platform completed program writing and debugging. Finally, through a series of real. The function designed in the system scheme is verified. The overall power consumption is less than one hundred milliwatts, and the effective data transmission distance of the 20 meter range can be guaranteed, and the expected design goal is basically realized.
【學位授予單位】：中北大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TD63

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